N9TPB FCC License Search

🕒 FCC license data updated yesterday 8:30 am CDT (FCC files through Oct 1, 2026) · next update today 6:00 am CDT

Ask: HAMs within 5 miles of N9TPB · Extra class operators in Madison, WI · or try N9TPB · K9* wildcards · Smith, John · 0004797601 (FRN) · 53703 · Madison, WI

K3GDI HAM

✅ Available for a vanity request — free since Oct 22, 2013.

1x3 call: Technician, General, Advanced and Amateur Extra licensees can request it. No pending applications list it.

📬 QSL: no LoTW uploads on record · not eQSL AG · QRZ · HamQTH

Not currently held · 2 holders on record · available since Oct 22, 2013

Previous holder: Michelle A Isringhaus

Held K3GDI Apr 26, 2011 → Oct 21, 2011 · first licensed Jul 27, 2001 as KC0LCV · 6 licenses · FRN 0005591672

📦 Moved: Cadet, MO → Farmington, MO

K0MAM Active Technician · vanity Jun 23, 2020 → expires Jun 23, 2030

Licensee
Michelle A Isringhaus

Address
629 Maple Valley Drive #516
Farmington, MO 63640-1951
37.7897, -90.4386 (street) · Grid EM47ss · CQ 4 · ITU 7 · map ↗

FRN
0030771430

Previous call
KC0MAM

Last granted
Jun 23, 2020

Effective
Jun 7, 2024

Last action
Jun 7, 2024
FCC actions (4)
- Jun 7, 2024 — Administrative update LIAUA
- Mar 23, 2021 — Administrative update LIAUA
- Jun 23, 2020 — Vanity call sign granted VANGRT
- Jun 23, 2020 — License issued LIISS
📦 Moved: Blackwell, MO → Cadet, MO

KC0MAM Canceled Technician · vanity Jan 7, 2012 → Jun 23, 2020 (canceled)

Licensee
Michelle A Isringhaus

Address
PO Box 103
Cadet, MO 63630
38.0279, -90.7194 (ZIP center) · Grid EM48pa · CQ 4 · ITU 7 · map ↗

FRN
0005591672

Previous call
KD0QIE

Last granted
Jan 7, 2012

Effective
Apr 7, 2015

Last action
Jun 23, 2020
FCC actions (4)
- Jun 23, 2020 — License canceled LICAN
- Apr 7, 2015 — Administrative update LIAUA
- Jan 7, 2012 — Vanity call sign granted VANGRT
- Jan 7, 2012 — License issued LIISS
📦 Moved: Farmington, MO → Blackwell, MO

KD0QIE Canceled Technician Dec 19, 2011 → Jan 7, 2012 (canceled)

Licensee
Michelle A Isringhaus

Address
10170 Lakeview Ln
Blackwell, MO 63626
38.0727, -90.7098 (ZIP center) · Grid EM48pb · CQ 4 · ITU 7 · map ↗

FRN
0005591672

Last granted
Dec 19, 2011

Effective
Dec 19, 2011

Last action
Jan 7, 2012
FCC actions (7)
- Jan 7, 2012 — License canceled LICAN
- Dec 21, 2011 — FCC action LTSFND
- Dec 21, 2011 — FCC action LTSFRN
- Dec 20, 2011 — FCC action EFCFRN
- Dec 20, 2011 — FCC action ESCFRN
- Dec 19, 2011 — License issued LIISS
- Dec 19, 2011 — Systematic call sign granted SYSGRT
📦 Moved: Blackwell, MO → Farmington, MO

K0GDI Active Amateur Extra · vanity Oct 21, 2011 → expires Oct 21, 2031

Licensee
Greg D Isringhaus

Address
629 Maple Valley Drive #516
Farmington, MO 63640-1951
37.7897, -90.4386 (street) · Grid EM47ss · CQ 4 · ITU 7 · map ↗

FRN
0005591672

Previous call
K3GDI (General)

Last granted
Jul 30, 2021

Effective
Apr 28, 2026

Last action
Apr 28, 2026
FCC actions (10)
- Apr 28, 2026 — Administrative update LIAUA
- May 30, 2024 — Administrative update LIAUA
- May 29, 2024 — Administrative update LIAUA
- Jul 30, 2021 — License renewed LIREN
- Mar 23, 2021 — Administrative update LIAUA
- May 13, 2015 — License modified LIMOD
- Apr 7, 2015 — Administrative update LIAUA
- Nov 9, 2011 — Administrative update LIAUA
- Oct 21, 2011 — Vanity call sign granted VANGRT
- Oct 21, 2011 — License issued LIISS
K3GDI Canceled General · vanity Apr 26, 2011 → Oct 21, 2011 (canceled)

Licensee
Greg D Isringhaus

Address
10170 Lakeview Ln
Blackwell, MO 63626
38.0727, -90.7098 (ZIP center) · Grid EM48pb · CQ 4 · ITU 7 · map ↗

FRN
0005591672

Previous call
KC0LCV (Technician)

Last granted
Apr 26, 2011

Effective
Apr 26, 2011

Last action
Oct 21, 2011
FCC actions (3)
- Oct 21, 2011 — License canceled LICAN
- Apr 26, 2011 — Vanity call sign granted VANGRT
- Apr 26, 2011 — License issued LIISS
KC0LCV Canceled General Jul 27, 2001 → Apr 26, 2011 (canceled)

Licensee
Greg D Isringhaus

Address
10170 Lakeview Ln
Blackwell, MO 63626
38.0727, -90.7098 (ZIP center) · Grid EM48pb · CQ 4 · ITU 7 · map ↗

FRN
0005591672

Last granted
Jul 27, 2001

Effective
Apr 4, 2011

Last action
Apr 26, 2011
FCC actions (5)
- Apr 26, 2011 — License canceled LICAN
- Apr 4, 2011 — License modified LIMOD
- Apr 12, 2007 — Administrative update LIAUA
- Jul 12, 2006 — Administrative update LIAUA
- Jul 27, 2001 — License issued LIISS

Address history

From FCC database snapshots (2004 → now). "Seen" dates are the first and last snapshot showing that address.

Seen Jul 1, 2024 → Sep 27, 2026 · 10 snapshots · as K0GDI
Greg D Isringhaus
629 Maple Valley Drive #516, Farmington, MO 63640-1951
37.7897, -90.4386 (street) · Grid EM47ss · CQ 4 · ITU 7 · map ↗
Seen Jul 1, 2024 → Sep 27, 2026 · 10 snapshots · as K0MAM
Michelle A Isringhaus
629 Maple Valley Drive #516, Farmington, MO 63640-1951
37.7897, -90.4386 (street) · Grid EM47ss · CQ 4 · ITU 7 · map ↗
Seen May 19, 2015 → Sep 27, 2026 · 36 snapshots · as KC0MAM
Michelle A Isringhaus
PO Box 103
Cadet, MO 63630
38.0279, -90.7194 (ZIP center) · Grid EM48pa · CQ 4 · ITU 7 · map ↗
Seen May 28, 2012 → Sep 27, 2026 · 43 snapshots · as KD0QIE
Michelle A Isringhaus
10170 Lakeview Ln, Blackwell, MO 63626
38.0727, -90.7098 (ZIP center) · Grid EM48pb · CQ 4 · ITU 7 · map ↗
Seen May 27, 2010 → Sep 27, 2026 · 92 snapshots · as KC0LCV
Greg D Isringhaus
10170 Lakeview Ln, Blackwell, MO 63626
38.0727, -90.7098 (ZIP center) · Grid EM48pb · CQ 4 · ITU 7 · map ↗
Seen May 19, 2015 → Apr 27, 2024 · 24 snapshots · as K0GDI
Greg D Isringhaus
PO Box 103
Cadet, MO 63630
38.0279, -90.7194 (ZIP center) · Grid EM48pa · CQ 4 · ITU 7 · map ↗
Seen May 28, 2012 → Mar 28, 2015 · 9 snapshots · as K0GDI
Greg D Isringhaus
PO Box 1166, Imperial, MO 63052
38.3930, -90.4326 (ZIP center) · Grid EM48sj · CQ 4 · ITU 7 · map ↗
Seen May 28, 2012 → Mar 28, 2015 · 9 snapshots · as KC0MAM
Michelle A Isringhaus
PO Box 1166, Imperial, MO 63052
38.3930, -90.4326 (ZIP center) · Grid EM48sj · CQ 4 · ITU 7 · map ↗
Seen Nov 7, 2004 · 1 snapshot · as KC0LCV
Greg D Isringhaus
5208 Summer Circle, Imperial, MO 63052-2176
38.3930, -90.4326 (ZIP center) · Grid EM48sj · CQ 4 · ITU 7 · map ↗

Previous holder: FRANK BAIR

Held K3GDI Feb 28, 1995 → Feb 28, 2005 · first licensed Feb 28, 1995 as K3GDI · 1 license · no FRN on file (pre-2001 records)

K3GDI Expired General Feb 28, 1995 → Feb 28, 2005 (expired)

Licensee
FRANK BAIR

Address
2602 MEADOWBROOK BLVD
YORK, PA 17402
39.9570, -76.6600 (ZIP center) · Grid FM19qw · CQ 5 · ITU 8 · map ↗

Last granted
Feb 28, 1995

Effective
Feb 28, 1995

Last action
Mar 1, 2007
FCC actions (1)
- Mar 1, 2007 — License expired LIEXP

Address history

From FCC database snapshots (2004 → now). "Seen" dates are the first and last snapshot showing that address.

Seen Nov 7, 2004 → Sep 27, 2026 · 47 snapshots · as K3GDI
FRANK BAIR
2602 MEADOWBROOK BLVD, YORK, PA 17402
39.9570, -76.6600 (ZIP center) · Grid FM19qw · CQ 5 · ITU 8 · map ↗

Others requesting K3GDI

1 application listed K3GDI as a choice, newest first.

Filed	Award	Applicant	Choice #	Status
Apr 6, 2011	Apr 24, 2011	KC0LCV · Greg D Isringhaus · Blackwell, MO	1	Granted

📡 On the air: APRS, digital & WSPR spots

No APRS positions, PSK Reporter reports or WSPR spots for K3GDI in the last 24 hours. They show up here within seconds of K3GDI beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.